Find median, in this group median is 1
find Q1 which is median of lower half, in this group Q1 = 1/4
find Q3, which is median of upper half, in this group Q3 = 5/4
IQR is Q3-Q1
IQR = 5/4 - 1/4 = 4/4 = 1
Answer: $512 is your answer
(original-new)/original *100% decrease
(6995-6495)/6995 *100%
500/6995*100%
7.14796%
To the nearest whole percent
7% decrease
Well, to word it more easily, adding a negative is just subtracting.
Here are some examples to help:
10 - 5 = 5. right? so...
10 + (-5) = 5.
Answer:
x = -3 +/- sqrt(17)
Step-by-step explanation:
-6x - (x^2) - 8 = 0
-((x^2) + 6x + 8) = 0
(x^2) + 6x + 8 = 0
(x + 3)^2 - 1 = 0
(x + 3)^2 = 1
x + 3 = +/- sqrt(1)
x + 3 = +/- 1
x = -3 +/- 1
x = -4, -2
